Machine Learning Engineering Intern - Core ML (Summer 2026)

Reddit, Inc. is seeking Machine Learning Engineering interns for their Core ML teams. The role involves working on impactful projects, gaining exposure to engineering processes, and contributing to model training and backend systems. Responsibilities Work on projects that impact the business. You'll gain exposure to how a real engineering team works, from sprint planning to shipping code. As a MLE intern you will also be exposed to scalable systems that handle the complexity and volume of Reddit’s vast user base and content Be mentored by experienced engineers from all backgrounds. From bootcamps to universities, small to medium and large companies, you'll work with engineers of many different experiences and levels. You'll have a formal mentor on your team guiding you throughout the summer as well! Contribute to the betterment of Reddit, whether that be training models, maintaining production backend systems, or serving up relevant content to users. MLE’s work on designing, implementing, improving, testing, and launching new model enhancements to boost user engagement Skills Actively working towards a Master's or PhD degree at an accredited university/college in Computer Science, Computer Engineering, Data Science or a related field Graduating between December 2026 and June 2027, with less than 3 years of relevant professional work experience Strong knowledge of CS fundamentals (programming comes second nature) Strong foundational knowledge of machine learning concepts - experience training and evaluating models using pytorch, keras, tensorflow, or SOLR Experience working with databases, large scale data processing & pipeline orchestration with tools like Dataflow, Kubeflow, Airflow, BigQuery, and Ray You're over the age of 18 and authorized to work in the United States Experience with large language learning models (LLMs) Previous research experience and/or publications within the AI/ML field Previous experience working with social networks or open source projects A desire to work at either our Reddit HQ in San Francisco or remote during summer 2026 Benefits Catered lunch Free snacks Company Overview Reddit is the heart of the internet, where millions of people get together to talk about any topic imaginable. It was founded in 2005, and is headquartered in San Francisco, California, USA, with a workforce of 1001-5000 employees. Its website is Company H1B Sponsorship Reddit, Inc. has a track record of offering H1B sponsorships, with 99 in 2025, 63 in 2024, 76 in 2023, 70 in 2022, 68 in 2021, 39 in 2020. Please note that this does not guarantee sponsorship for this specific role.